[ 901.371337][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 901.371756][ C3] CPU: 3 PID: 9100 Comm: perl Not tainted 6.8.0-rc6-virtme #1
[ 901.372015][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 901.372394][ C3] Call Trace:
[ 901.372543][ C3]
[ 901.372628][ C3] dump_stack_lvl+0x64/0xb0
[ 901.372810][ C3] __report_bad_irq+0x5f/0x180
[ 901.372974][ C3] note_interrupt+0x6b3/0x860
[ 901.373146][ C3] handle_irq_event+0x16d/0x1c0
[ 901.373308][ C3] handle_edge_irq+0x1fa/0xb60
[ 901.373476][ C3] __common_interrupt+0x7c/0x180
[ 901.373645][ C3] common_interrupt+0x7e/0x90
[ 901.373806][ C3]
[ 901.373890][ C3]
[ 901.373971][ C3] asm_common_interrupt+0x26/0x40
[ 901.374134][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 901.374347][ C3] Code: 10 e8 31 51 a3 fd 48 89 ef e8 59 bd a3 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 55 e3 58 65 <74> 0e 5b 5d c3 cc cc cc cc e8 7f 79 c5 fd eb dc 0f 1f 44 00 00 5b
[ 901.374897][ C3] RSP: 0018:ffffc900014dfa88 EFLAGS: 00000286
[ 901.375115][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff3b99aea
[ 901.375358][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9aaacf81
[ 901.375601][ C3] RBP: ffffffff9e5abbe0 R08: 0000000000000001 R09: fffffbfff3b94c78
[ 901.375840][ C3] R10: ffffffff9dca63c7 R11: 0000000000000000 R12: 0000000000000a09
[ 901.376085][ C3] R13: ffffffff9e5abce8 R14: ffffffff9e5abbe0 R15: ffff888002be0000
[ 901.376331][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 901.376532][ C3] uart_write+0x220/0x440
[ 901.376658][ C3] process_output_block+0x13e/0x790
[ 901.376849][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 901.377071][ C3] n_tty_write+0x414/0x7a0
[ 901.377240][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 901.377408][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 901.377579][ C3] ? lock_acquire+0x1c1/0x220
[ 901.377748][ C3] ? iterate_tty_write+0x95/0x540
[ 901.377925][ C3] iterate_tty_write+0x229/0x540
[ 901.378097][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 901.378269][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 901.378439][ C3] vfs_write+0x9e9/0x10a0
[ 901.378566][ C3] ? lock_acquire+0x1c1/0x220
[ 901.378737][ C3] ? __pfx_vfs_write+0x10/0x10
[ 901.378904][ C3] ? __might_fault+0xc6/0x180
[ 901.379089][ C3] ? kvm_clock_get_cycles+0x18/0x30
[ 901.379263][ C3] ? __fget_light+0x54/0x1e0
[ 901.379434][ C3] ksys_write+0xf5/0x1e0
[ 901.379563][ C3] ? __pfx_ksys_write+0x10/0x10
[ 901.379740][ C3] do_syscall_64+0xc9/0x1e0
[ 901.379909][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 901.380114][ C3] RIP: 0033:0x7f365ebb6957
[ 901.380288][ C3] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[ 901.380890][ C3] RSP: 002b:00007ffe55b6c3a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 901.381221][ C3] RAX: ffffffffffffffda RBX: 000055e8d1615070 RCX: 00007f365ebb6957
[ 901.381474][ C3] RDX: 0000000000000001 RSI: 000055e8d1615070 RDI: 0000000000000001
[ 901.381716][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 901.381965][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055e8d1601590
[ 901.382213][ C3] R13: 000055e8d15e22a0 R14: 0000000000000001 R15: 000055e8d1601590
[ 901.382473][ C3]
[ 901.382597][ C3] handlers:
[ 901.382726][ C3] [] serial8250_interrupt
[ 901.383453][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr